MDST_SYNC_SELTAB_DATA is a standard SAP Structure so does not store data like a database table does. It can be used to define the fields of other actual tables or to process "Table Names for Load History Selection (Data Part)" Information within sap ABAP programs. This is done by declaring abap internal tables, work areas or database tables based on this Structure. These can then be used to store and process the required data appropriately. i.e. DATA: wa_MDST_SYNC_SELTAB_DATA TYPE MDST_SYNC_SELTAB_DATA.
The MDST_SYNC_SELTAB_DATA table consists of various fields, each holding specific information or linking keys about Table Names for Load History Selection (Data Part) data available in SAP. These include IS_REL_TABLE (Relevance Indicator)... See below for full list along with technical details, documentation, text table, check tables, foreign key relationships, conversion routines, relevant tcodes and example ABAP select code etc. .